Improvement in revolving cannons



vE. BRBHM. NBVOLVING CANNON.

vI`\o.-1'l0,194.4 Patented Deo. 20, 1870.

MMMWWMM perforations ein the cannon.

UNITED STATES PATENT FFICE.

EDUARD BREHM, OF JERSEY GITYfNEW JERSEY.

IMPROVEMENT IN REVOLVING CANNONS.

Specification forming part of Letters Patent N0. l 10,191, datedDecember 2.0, 1870.

To 4all whom 'it may concern! Be it known that I, EDUARD BREHM, ofJersey City, in the county of Hudson and State of'NeW Jersey,haveinvented a new and Improved Revolving Gannon; and I do herebyVdeclare that the following is a full, clear, and

exact description thereofwhich will enable others skilled in the art tomake and use the same, reference being had to the accompany- 'ingdrawings, forming part of this specification, in which- Figu're 1represents a vertical longitudinal` section of my improved revolving`cannon, mi', Fig. 2, being the section-line. Fig. 2 is a verticaltransverse section of the same, y y, Fig. 1, being the section-line.Fig. 3 is a horizontal section of the same, z ve, Fig. 2,- beiug the.section-line.

Similar letters of reference indicate corresponding parts.

My invention relates to a revolving cannon for rapid ring, and mypurpose is to improve thereon, as hereinafter described, and subse-`guently specified in the claim.

A in the drawings representsthe frame in which the cannon-body B ishung, by means of trunnions a a, in the well-known manner. The

frame A terminates at its lower end in a turn table or plate, which is,by a swivel-bolt, b, pivoted to the stationary or supportin g frame U. Aworm, c, hung in, the frame C, and

meshing into the toothed edge ofthe turn-plate of A, serves to set thecannoli horizontally, so as to point it in any desired direction. Avertical screw, d, arranged in the frame A, behind the trunnions,supports the breech end ofthe cannon, and serves to adjust the range ofthe same.

The cannon-body I3 consists of the front barrel and of thebreech-chamber D. This breechchamber is enlarged downwardly and to theeach set containing as many separate receptacles ff for cartridges asthere are bores or clef receives one cartridge, and is, by abackwardly-extending tine perforation, connected with a groove orchamber, g. The groove or chamber g is in communication with ai nipple,h, which projects from the disk E, there being one nipple k for each ofthe sets ot` cartridgechambers. Whenever a percussion-cap onone ot' thenipples is exploded it will ignite the powder in the groove or chamberg, and thereby also all the cartridges of the set to which it pertains.Whenthe disk is so turned that the several cartridge-receptacles of oneset are in exact line with the bores e, and when then these cartridgesare exploded, as aforesaid,

their charges will all be passed through and directed by the said boresQr barrels e. The disk can then be turned to bring another set ofcartridges into line and have the same discharged. The turning of thedisk is effected by means of the shaft F, which has a crank-handle, z',to be turned. The shaft can be readily withdrawn to release the disk andpermit its removal and the insertion of another. The shaft has aprojecting lug,'j, which, entering a notch in the disk, serves to carrythe same round with the shaft. A forked key, k, Iitting over the groovedfrontend of the shaft. serves to retain the same in position for opration.

The hammer G, for exploding the charges,'is

secured to a spring, H, and is raised by the cam-shaped edge ofthe diskbetween the nipples. When a nipple arrives under the hammer the latteris suddenly forced down upon the same -t0 explode the percussion cap,and to lock the disk in the proper position for the discharge.

The bores of the barrel B diverge from their breech ends in a horizontaldirection, as is clearly shown in Fig. 3, so that they will serve tospread the shot and to sweep an extensive expanse of ground. A

The grooves or chambers gare protected by removable plates l, which areheld in place by means of screws or other fastenings. When these platesare taken ott the said grooves or chambers can be properly cleaned orfilled.

It is designed to take to a ticld of operations a series of disks, E,properly loaded, and to rapidly replace each one when discharged by onethat is still loaded, and to reload those which are emptied while theothers are being Each receptai discharged, so as thereby to be able tokeep up an absolutely irresistible ne againstan approaching enemy.

A suitable armor, made of sheet. metal oxother material, can be appliedto the frame of the cannon for protecting' the men attending to theloading and operation of the same.

Having tbusdeseribed my invention, I claim as new and desire to secureby Letters Patent- A disk, E, having a cam-shaped edge, and

several sin gle-nippled sets of cartridge-holders, combined, asdesnribcd, with n-spring-halnmer, G,\vbiob antonmtcally looks the saiddisk and explodes tliecnrtridges in the manner set; forth.

EDUARD BREIIM.

Witnessesz' GEO. W, MABEEV ALEX.- F. omm'is.

